On Tue, Apr 07, 2015 at 11:30:15AM -0400, Alan Stern wrote: > On Tue, 7 Apr 2015, Johan Hovold wrote: > > > Make sure only to copy any actual data rather than the whole buffer, > > when releasing the temporary buffer used for unaligned transfer buffers. > > > > Note that the corresponding fix of musb also fixes a lockup on > > disconnect, where repeated failed transfers would starve the hub > > workqueue from processing the disconnect, which would have prevented the > > urbs from being resubmitted. In this case there is no data to forward, > > but the full buffer length was being copied nonetheless. > > This is wrong for isochronous transfers, because the transfer data > generally isn't contiguous in memory. > > It would be okay to do this for other transfer types, though. Thanks for pointing that out. I'll re-spin the series tomorrow. Johan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
